Yarn sheet cutting mechanism



0d. 17, '1933. 'E w STRACK 1,931,332

YARN SHEET CUTTING' MECHNISM FiledAOct. 28, 1932 2 Shelets-Sheet l INVENTOR ATTORNEY Oct. 17, E. w. STRACK YARN SHEET'CUTTING MECHANISM Filed Oct. 28

, 1932 2 Sheets-Sheet 2 ILL/ w 1l l/llllll/l//l ATTORNEY ties are constituted as motor'driven cutting Patented Oct. 17, 1933 PATENT OFFICE# YAnNsHEET 'cUTTrNG MECHANISM VEric W. Strack, Amsterdam, N. Y., assignor to ABigelow-Sanford Carpet Co., Inc., Thompson--' ville, Conn., a corporation of Massachusetts YApplicaiitiim october 2s, 1932. sc riaiNmssassa sclaims. (c1. 2x3-55.5) 4, I'

x This :inventionrelates to the manufacture of carpets `and rugs,.and.is more particularly directed to mechanism for cutting a series of yarns o'r a yarn sheet -when the cutting. instrumentali# members. n

a In weaving Axminister and'likevcarpets and rugs, .the pile forming. tufts are derived from spools, each of which vcontains a series of yarns, either'of the same or dierent color, wound side by side in a setting frame. When the requisite length of yarns have been wound upon a spool, the series of yarnsfwhichv constitutes a yarn sheet, are cut between the source of supply and the spool, and the latter is'then mountedon a tube frame having a series of smalli tubes through each of which projects the end of one of theyarns extended from the wound spool'.

Ith'as been'the common practice .heretofore to cut the series of yarns or yarn sheet by aslow hand operation, `with the result that the ends of the yarns extendingffrom the wound spool have been uneven, and' necessitateda trimming operationafterthe removalof the wound.; spool from the setting iframe with. consequent waste 'of-expensive yarn. l

l Onef the 'objects-of the present inventionl is to provide acutting mechanism fora series of yarns orrya'rn sheet so contrived that it will rcut the yarn -sheet transversely in a straight line, thus eliminating waste. f g

l Another object ofthe invention is to. provide forIan-expeditious action of the cutting operation by motor driven cutters mounted and supported for bodily movement across the yarn sheet,

. thereby economizing in time and labor of the machine attendant. A v l l Inaccordance with the present embodiment of ,the invention theV motor.. driven cutters aresup` ported Afor bodily movement transversely of thev yarn' sheet, between the source of yarn supply and' the spool on which the yarns are wound, so

that by a single traverse of'the motor driven cut-v ters from oneto the other edge of the yarn sheet, YtheV yarns are quickly cut in a straight line and he woundspool is at once ready to be associated 4 with its tube frame.` l

"The invention and novel features thereof will.

in motor driven cutting mechanism so associated with theV setting frame thatvbyasingle traverse present invention and' showing theyyarn' line when the spool is being over wound Fig. 2` isa View similar to thatof Fig. 1 show- 1 ing the -yarn-Y line when the. spool vis under wound andalso illustrating a'wound spoolwith 'L the yarns positioned fon cutting;V f 1 Fig. -3 is. an enlarged sideelevation'with parts broken raway of a'motor driven cutting mecha- Y nismy" v y Fig. 4 is a top or planv view with parts broken away showing the motor drivenl cutting -mecha- Fig. 5 is avperspective view showing. the parts Y positioned for cutting when over Wound. f

The conventional Ortandardnsetting frame` is provided with driving mechanism kfor rotating the spoolV to be Woundwanddrawing the series of the spool has been l yarns from a convenient source of supply. Only Vwhich constituteY in connection with the presser `rollxl one goodform of winding, mechanism for 'rotating the spool tobe wound. l l

,When the spool hasbeensupplied 'with the desired lengthV of yarnswound thereon sideby side the yarn ysheet is to be cut in order that the woundspool may be transferred to'thetube `frame for drawing the ends ofthe yarns singly through individual tubes, and one of the important features of the present invention consists of the motor driven cutting' mechanism .transverselyof the yarn sheet, the' latter will becut o n a straight line and the ends of the cut yarn lead.- ing* from lthe spooly be all. of even length and ready to, bedrawn through the tubes ofthe tube frame.

AIn accordancewith the presentinventionfthe motor driven. cutting mechanism `C Onstituted as a motor driven shearsmounted and vguided forlmovement transversely of thesetting'frame in a straight line between Vthe woundspool yand the source of the yarn supply. v v f Pivotally mounted upon the supporting frame l Aare the sideV arms 5 which may have their pivtal association with the supporting frame atfa point v6', and each side -armis-provided with a seat'i for the supportof a wound spooljwhenit is transferred fronry its Winding yposition lto the seats `of the sidearms. more `-clearlygillus.-

formed integral withA the arms, but as herein..

shown they are separately formedgand secured to the side arms by appropriate securing means,

as for instance, the bolts 9. v

Exendingtransversely of the setting frame is a guide bar 10 positioned between the seat 7 for the wound spool and the winding mechanism. The guide bar 10 may be appropriately secured in the desired position preferably close or adjacent tok the seat 7 by the bolts 9 which secure the seat 7 to the side arms.

Mounted for movement transversely between the side arms 5 on the guide bar 10 is va slide 11 having its end portions 12 turned back of the guide bar, as clearly indicated in Figs.' 1 and 2 to maintain the slide 11 in free sliding engagement with the guideV bar 10, the construction being such that the slide llfmay be freelymoved transversely of the setting frame and across the yarn sheet between the side arms 5. f

Secured to the slide 1l as by means of a brack et 13, Fig. 5, is the motor driven cutting mechanism 14 having a handle 32 such that when the yarn is to 'be cut by the motor driven cutters the cutting mechanism and slide may be moved transversely of the yarn sheet and effect a straight line cut.

i The cutting mechanism in the present embodiment of the invention is constituted by motor driven` shearsl formed of the fixed member 16 and the movable-memberV 17 pivoted together atv Y24 which is itself connected to a crank disk 25 ,mounted upon andl fixed to the motor driven shaft 26, the construction being such that when the motor driven shaft 26 is rotated the movable member of the shears will be rapidly operated and in connection with the iixed cutting member 16 serve to cut the series of yarnsv or yarn sheet. i l

'I'he motor may be of any usual type and as more 'clearly illustrated in Fig. 4 the motor 27 is of the electric type and secured to theA fixed plate 20 by suitable means, such as the screws-28.

The motor and its associated parts are preferably enclosed by a casing 29 and to the casing 29 is secured the hand bracket 30 byrmeans of a screw 31, so that handle 32'for moving the motor driven shears and slide transversely of the machine may be in convenient position for operation. YMounted upon the hand bracket 30 is an electric switch 33, best shown in Figs. 3 and 4, so located with respect to the handle 32 as to be in convenient position for manipulation'by the machine attendant.

Secured to thev binding posts 34 and 35 rare the electric Wires 36 and 37 which as more clearly shown in Fig. 4 connect with the terminals 38 and 39 of the electric motor 27, whereby on manipulation of the electric switch 33 by the nger'of the machine attendant the motor' is started or stopped as circumstances dictate. v

The side arms 5, Fig. 1, `are normally under the influence `of springs l40 which act during thewinding operation tomaintain the side arms in an upright position as indicated in Fig. 1 and in order to limit the movement of the side arms 5 under the stress of the spring suitable stops 41 may be utilized.

When the winding spool has been over wound Fig. 1, so that the lead of the yarn sheet, as shown by dotted lines, Fig. 1,l is directly through the path of the motor driven shears. The parts being in the position stated with the over wound spool in the seat 7, dotted lines, Fig. 1, the motor driven shears and 'slide may be transversely moved across the machine, as indicated in Figs. 1 and 5, thereby eifectinga cutof the yarn sheet rapidly and'in a straight line.

When the spool is underwound, as indicated in Fig. 2 and the wound spool is transferred to the seat 7,'a fresh spool 43, Fig. 2, may be placed in the loop orV bight of the yarn sheet a and the presser roll 4 be permitted to drop to its lower winding'position whereupon lthe lead of the yarn from the fresh. spool to the wound spool supported in the seats 7 is positioned for the cutting operation without turning the arms 5 to their lowered position as in the case of .cutting the yarn sheet when the spool has been over wound?. This po,-`

sition of parts is well indicated invFig. 2 and in order to direct the yarn sheet for the under winding operationa guide bar 44 extends transversely of the machine andA over this passes the yarn sheet'a, then downwardly and under the fresh spool 43, then upwardly to the right ofthe presser roll 4 and to the'. woundspool supported iio infythe seats.7 ,of the side arms, andit will bev noted that in this position of parts the yarn passes over the guide bar l() and is positioned in the path of the motor driven shears.

` From the construction described iis-will be apparent that the present invention provides a motor driven cutting mechanism or shears supported for sliding movement transversely of the machine between the side arms and across the yarn sheet whether the spool be over wound or under wound and since Ythe 'cutting mechanism is supported during its movement Ytransversely of the machine the attendant has lnotthe duty of supporting the rather heavy motor driven cutting mechanismbut merely slides vit manually from one side of the machine to the other.V

, What is claimed is:-, Y Y

1. In a setting frame for ,winding a seriesl of yarns kside by side on a spool, the combination` straight line as the motor driven shears are moved across the series o! yarns.

v2. Ina settingrframe, means for winding a series of yarns upon a spool, side arms pivotally connected to the frame for swinging movement for either of two positions and having seats 'to `which a wound spool may be transferred, a guide bar secured to the pivotally mounted side arms between the seats and the winding means for movement with the side arms, a slide mounted upon the guide bar for bodily movement across the yarn sheet from one arm to the other in either position of the side arms, and motor operated shearscarried by the slide to cut the yarn sheet in a straight line.

3. In a setting frame, the combination of winding mechanism for winding a. series o1!` yarns side by side upon a spool, side arms pivotally sup-4 ported on the frame for movement to either of two l positions and having seats to which a wound spoolV may be transferred, a guide bar extendingA between and secured to the side arms for movement therewith as the side arms are turned about their pivotal supports to either of said two positions, a slide mounted on the guide bar for movement lengthwise of said bar transversely across the set-v ting frame, and motor driven shears connected to the slide for bodily .movement therewith across the setting frame to cui: the yarn sheet in either position'of the side arms.` 'Y Y '4. In a setting frame, the combination of means f for windingja series of yarns side by side'upon a n spool, sidel arms movable to either of two positions and having seats to which a wound spool may be transferred that the yarn sheet maybe positioned'for cutting, aV guide' bar between the side arms and motor driven shears 'mounted upon and supported -by the guide bar. for movement,l

transversely of the setting frame `for cutting the yarn sheet in a straight line in either of the two positions oi the sideV arms.

5. In a setting frame, the combination of means for winding aseries of yarns side by side on a spool, side arms having seats Ivor a wound spool and pivotally mounted for movement from a normally upright position to a substantially horizontal position, a guide bar between the side arms and motor driven cutting mechanism supported d spool in a straight line when the side arms are in a substantiallyhorizontal position.`

ERICW. STRACK. 

